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Oct. 18, 1921. 1,646,353

F. M. ELVEY MUSIC TURNER Filed Decj2. 1922 5 Sheets-Sheet 1 V 7 Q mvswron as;

. V 1,646,353 Oct. 18, 1927' ELVEY MUSIC TURNER Filed Dec. 2. 1922 5 Sheets-Sheet 2 (fa 5. 7.

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' ATTORNEY EM. INVENTOR Oct. 18,1927.- 3 F. M. ELVEY MUS IC TURNER Fil 'pd Dec. 2. 1922 5 Sheets-Sheet 3 8 7 i 1927" F. M. ELVEY MUSIC TURNER Filed Dec. 2. 1922 5 Sheets-Sheet 4 Edd-.E/Vzy INVENTOR A'ITORNEY 1 1,646,353 6 1927' F. M. ELVEY MUSIC TURNER Filed Dec. 2. 1922 5 Sheets-Sheet 5 WITNESS:

iY/M-I/V? Patented Oct. 18, 1927, I i

PATENT oi-"F ca UNITED ;STATES FREDERICK MnNnnLssoHN ELVEY, or wIMBLEnon, sonnnY, EnGLANn;

Music TURNER.

Application filed December 2, 1922. Serial No. 604,546,

This invention relatesto improvements in music leaf turners and has for an ob ect'the provision of a handoperated device which may be attachedto'a piano or music stand, whereby a player may turn the leaves or sheets one at ajtime, without interference with playing.

Another object of the'invention is the provision of a music leafturner which may be secured within a piano, without interference with its tonal qualities'or with tuning, the device being normally housed within the piano and capableof being readily and quickly 'moved into position for use.

Another object of the invention is the provision of: a novel form of music leaf clamp, which will readily gr p and hold a leaf, but which may be quickly released when desired.

WVith the above and other ob ects in View, the invention further includes the following novel features'and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the appended claims;

In the drawings Figure 1 is a front elevation of a piano with the invention in positionfor use.

Figure 2 is .a vertical sectional view through the front portion of the piano with theinventionin normal position.

Figure 3 is a front elevationof the invention per se.

Figure 4 is aside elevation of apart. of

the same. i V

Figure 5 is atop plan view.

Figure 6 is an enlarged sectional view on the line 6-6 ofFigure 3. i

'on on Figure 7 is a secti the line 7+ of Figure 3.

Figure 8 is a section on the line 8*8 of Figure 3 i Y I Figure 9 is a detail perspective View of one ofthehorizontally'movable leaf arms. t Figure 10 is a section on the line 1( )1O of'Figure 3. 3

Figure 11 is a section on the line H ll of Figure 3.

Figure 12 is a detail perspective view of one of the leaf clamps. i v Figure 13' is a section on the line 13-13 of 'Figure 3. a i

Figure 1 1 is a section on the; line*1$1 1 of Fi ure 8. 1 I i i Figure 15 is a detail perspective view of K the rem-tabla arm actuating head.-

i igure 16 is asection on the line 16 1 6 of Figure 3.

Figure 17 is an elevation of one ofthe music leaf clips.

Figure 18 is a plan view of the same. V

-Referring in detail to the drawings, like characters of reference denote corresponding parts throughout theseveral views.

F In illustrating the inventiomuse is made of a piano, but with slight modifications, of the attaching means, the invention is equally well adapted for use in connection with a music stand. In the illustration aboutito bedescribed, the reference character. 20 in- 'dicates the top front panel of. a piano to which is secured the top bracket 21-of the a 1 device, the latter being provided witha ver- The outer end of this pedal is heldin nor-.

mally :elevated position by means of fiat springs 2 7and this outer end carries a foot; v I

engaging portion 28., "Theopposite endof the pedal 26 is slotted and connectedto this slotted-end by meansofapivot pin1'29,is

the lower" end ofa sleeve 30,"having a spiral groove 31ftherein. y y Extending into the sleeve 30 -is the lower end ofv atubular member 32 and extending from this member is a stud 33 which enters the spiral groove 31 and as the tubular'mem- .ber 32 is'swiveledas shown at 34 in, a-[stationary, bearing bracket, 35, this; tubular member will be, rotated by a longitudinal movement of the sleeve30. The, bearing bracket 35 is of inverted s'ubstantiallyU- shape and The upper end oft-he tubular member32 is longitudinally slotted as shown at 37 and is provided with attachingw ears 36. i I

loo

extending within vthe upper. end ,OfnthlS member is a connecting rod 38, whose lower. 1

end is providedwith astud or key.39 which operates inthe groove37. This permits of independent vertical movement of the-rod 38 and at the same time 'providespmeans whereby rotary movement of the tubular member 32will' rotate the rod '38. i

"The upper end of therod 38 is removably secured within one end ,of'a cou lingmereber 40b means of a'sets'crew' 1 aiidathis eoupling inember's'ervesas sensation be i tween the rod 38 and the lowerend of a rod,

' Eforms a continuation;

42 which has a bearing in the sleeve 23. The upper end of the bearing sleeve 23 has secured thereon a head 43 within which are pivotally mounted the inner ends of leaf turning arms 44. These arms are rotatably mounted upon the upper end of the bearing sleeve 23 and for this purpose include enlarged portions 45, having openings 46 there in which receive the sleeve. The arms 44 further include inner and outer sections which are pivotally connected together as shown at 47 and the enlarged portion'45 is included in the inner section of the arm. This inner section further includes an inner horizontal portion '48 and an outer hori- Zontal portion 49, of which the outer section This outer section is indicated at 50 and as stated, is pi'votally secured to the outer end ofthe inner section and is capable of vertical movement, movement in one direction being limited by means of a stop 51, whereby the outer section 50 and the portion 49 of the'inner section may be arranged in horizontal alignment.

The outer section 50 ct each of the arms 44 is provided with a reduced extremity having a head or stop 52 at its outer end and sliding'ly mounted upon the reduced extremity'of each of the arms is a leaf engaging clamp 53. The inner sections of the arms 44 are arranged upon the bearing sleeve 23 in superimposed relation and are spaced apart by spacing washers 54 so as to permit of free independent pivotal movement. The head 43 within which the inner sections of -the' armsmove' is cut away to provide opposite stops 55, whereby movement of the arms is limited. The upper end of the bearing sleeve 23 is surrounded by a coiled spring "56 which provides suiiicient frictional engagement between theiarms and spacing washers as to preventaccidental movement of the arms; The upper end of the head 43 is-fitted with a removable cap 57 which has a threaded engagement with said head and bears against a washer 58. This washer in turn'fbears against the upper end of the spring 56' and forces the latter downward :uponthe arms 44.

The clamps 53 are adapted to grip the music sheets and for this purpose comprise a pair of members "59 which are :pivotailly connected together as indicated at 60. The

clamps 5'3 eachhave swiveled thereto a coupling member 61 which has a sliding engagement upon the outer reducedend of the vzsection "5O 50f athe arm 44, a shoulder 44 formed at the inner end of this reduced router section serving to limit the sliding movement of :the clamp in one direction, while the head 552 serves to limit :the sliding movement of the clamp in an opposite direction. The clamps 53 have their lower edges normally separated by means of a gag-ement. an opposite direction, the members 59 w1ll spring '62, while the opposite or upper ends of the members 59 are provided with inwardly extending projections 63 which are adapted to be engaged by a lug 64 carried by a longitudinally movable actuating pin 65. lVhen this pin is moved longitudinally, its lug 64 will engage between the projections 68 and force the upper ends of the members 59 apart, against the action of the spring 62 so that the lower edges of these members will be forced into clamping en- When the pin 65 is moved in be released and the spring 62 will act to separate the lower clamping edges of the members.

The shaft 42 extends upwardly through the head 43 and is provided with a laterally extending arm 66 from the outer end of which the-re extends a downwardly projecting extremity or end 67 which is substantially parallel with the shaft 42 and provides a vertically disposed arm. The arm 67 has its lower end operating within a bearing slot 68 provlded in ahorizontally arranged plate '39. which is carried :by the head 43. Rototably mounted upon the arm 67 is a cylindrical member or hub 70 which is yieldabl-y supported upon a spring 71 carried by the arm :67. The cylindrical member 70 is provided with spirally. arranged teeth 72 and these teeth are positioned to engage the inner ends of the arms 44 so as to move the arms horizontally. The cylindrical member 7 O has secured thereto a toothed wheel 73 and a ratchet wheel 74-,

the latter rotating beneath a plate .7 5 which is rigidly secured-upon the arm 67.

Extending from the head 43 is an arm 76 upon which there is pivotally mounted a spring actuated dog '77'which is located in the path of the ratchet wheel 74 and when so engaged will act to move the ratchet wheel one tooth, a spring actuated dog 78 carried by the plate .7 5 servingto hold the ratchet wheel against retrograde movement.

and the innerend of the .pin 79 is adapted 1 to engage one of a plurality of openings 81 provided in the sleeve 23, these openings permitting of suiiicient adjustment to properly position the arms 44 for engagement with the upper edges of the music sheets. The clamps 153 are then engaged with the upper edges of the sheets,-,the outer or cover pages being first clamped to the music rack by suitable means, such as clamps 82, illustrated in Figures 17 and 18 of the drawings. All of the arms 44 are then positioned to the right and when it is desired to turn the first leaf, the pedal 26 is pushed downward. This will raise the sleeve 30 and through the pin and slot engagement between the sleeve and the tubular member 37 the shaft 42 will be rotated. This will move the arm 67 in the arc of a circle and cause the foremost tooth 7 2 of the cylindrical member 70 to engage the inner end of the foremost arm 44 to move this end from left to right and consequently move the outer or clamp carrying end of the arm 44 from right to left so as to carry the first page or sheet of music from right to left. hen the pedal 26 is released the springs 27 will cause the sleeve 30 to move downward so as to rotate the shaft 42 in an opposite direction and cause a reverse arcuate movement of the arm 67 Just prior to the arm 67 reaching the limit of this reverse movement, the dog 77 will engage one of the teeth of the wheel 73 so as to rotate the cylindrical member 70 the distance of one tooth, rotation being limited by the engagement of the holding dog 78 with the ratchet Wl18Bl74. This rotation of the cylindrical member 70 will position the next tooth 7 2 for engagement with the next or foremost arm 44, so that when the foot pedal 26 is again depressed, movement of the next leaf turning arm from right to left will be elfected.

The invention is susceptible of various changes in its form, proportions and-minor details'of construction and the right is herein reserved to make such changes as properly fall within the scone of the appended claim.

Having described the invention what is and transversely disposed bores, abearing sleeve adjustably mounted within the vertical bore of the bracket, a rod rotatably mounted within the sleeve, a connecting rod provided with a coupling for connection with the bearing sleeve, a stud carried upon the connecting rod being received Within the slotted portion of the tubular member to eflect simultaneous rotation thereof, a head carried upon the upper end of the bearing sleeve, leaf turningvarms pivotally mounted upon the sleeve within the head, a cylidrical member provided with spirally arranged teeth adapted to engage and move thearms horizontally, and a ratchet mechanism associated with the cylindrlcal member to prevent more than one arm bemg turned at one time. V

In testimony whereof I afiix my signature.

FREDERICK MENDELSSOHN ELv EY. 

